Controller enclosure, mounting and orientation of same

ABSTRACT

A controlling and monitoring control application associated with one or more work operations of one or more utility devices is disclosed. The controller is programmed for controlling one or more external work operations associated with one or more utility devices. An I/O board is connected in communication with the primary controller having a module with a plurality of device-specific control applications associated with one or more device-specific work operations. The housing of the controller includes one or more cable access points for plugging a cable into the controller. The cable access points are sealed to prevent water from entering into the housing. A mounting bracket assembly provides flexibility for mounting the controller at various orientations and/or positions. The controller also includes a DC control circuit for controlling backlight luminance over the entire dimming ratio.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 U.S.C. §119 to provisionalapplication Ser. No. 61/488,495 filed May 20, 2011, herein incorporatedby reference in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates generally to a controller enclosure for utilitydevices, and more particularly to a universal controller enclosure,mounting and orientation of the same for controlling and monitoringcontrol applications associated with one or more work operations for oneor more utility devices.

2. Description of the Prior Art

Utility devices are generally controlled and monitored by adevice-specific controller. For example, a product dispenser for a warewashing system is controlled and monitored by a dispenser controllerwhereas the ware washing system is controlled by a separate ware washingcontroller. Since the dedicated controls and hardware for eachcontroller are also included in the controller enclosure, thecontrollers are difficult to position in highly accessible locationssuch as on the front of a utility device. A controller enclosure isoften also subjected to interrogation by environmental conditionsresulting from the utility device or the operating environment. Forexample, controller electronics and hardware can degrade and fail overtime by exposure to the steam and moisture byproducts of the warewashing process. Thus, controllers often are located a distance from theutility device it controls to prevent damage to the enclosure. Not onlyare controller degradation and accessibility a concern, but so iscommunicating data to and from the controller especially via wiredconnections. Often, user interface points allow conditions within theenvironment, such as moisture, to enter and degrade the controller andits components.

It is therefore desirable to provide a controller capable ofsimultaneously controlling multiple utility devices that can bepositioned at any location on or adjacent to a utility device regardlessof the environmental conditions.

It is further desirable to provide a controller that is accessible uponneed by wired connection regardless of the environmental conditions atthe install location.

It is further desirable to provide a controller enclosure that iswatertight at cable ingress locations.

It is further desirable to provide a controller enclosure that ismountable, positionable and oriented for viewing and to prevent wateringress at openings into the enclosure.

SUMMARY OF THE INVENTION

In one embodiment, the invention is a controller for simultaneousoperation of multiple utility devices. The controller includes a primarycontroller having a multi-tasking operating system and a plurality ofnative control applications for controlling one or more native workoperations. A plurality of external control applications are loaded ontothe primary controller for controlling at least one or more externalwork operations associated with a utility device. One or more of thenative and external control applications are operated simultaneously tomonitor and control the native and external work operations. In apreferred form, the controller includes a first set of device controlsfor one external operation and a second set of device controls foranother external work operation. Two or more sets of the device controlsfor one or more external operations are controlled simultaneously by theprimary controller. Additionally, the native and external workoperations are monitored and controlled simultaneously. At least one I/Oboard is connected in communication with the primary controller having amodule with a plurality of device-specific control applicationsassociated with one or more device-specific work operations. Operatingcode is loaded onto the primary controller for executing and monitoringone or more device-specific work operations, includes at least onedevice-specific module connected to the primary controller to monitorand control the one or more external work operations.

In another embodiment, the invention is an electronics enclosure havinga waterproof wire access point for making one or more wired connectionsto electronics within the enclosure. The electronics enclosure includesa water tight housing adapted to house electronics. At least one openingis included in the housing providing a cable port for plugging a cableinto the electronics within the housing. In one embodiment, a cap iscoupled by interference fit to the opening. At least one elasticallydeformable edge is formed around the opening in the housing and/or thecap. A gasketless, water tight seal is formed by interference fit of theat least one elastically deformable edge between the cap and openingwhen the opening is closed by the cap. In a preferred form, theelastically deformable edge comprises a rib and the cap is tethered tothe enclosure. In one aspect, the cap includes at least one innersealing surface having a cable seat sealing against and outer surface ofthe cable to provide a water tight seal around the cable when theopening is closed by the cap and the cable is plugged into theelectronics.

In another embodiment, the invention is an orientation adjustableelectronics enclosure and mounting bracket assembly. The assemblyincludes a housing adapted to house electronics, a mounting bracketconnected to the housing, a coupling bracket connected between thehousing and the mounting bracket, a set of rotation adjustment featuresconnecting the coupling and mounting bracket together, and a set oforientation adjustment features connecting the housing and couplingbracket together. In a preferred form, the invention includes anarcuate-shaped track on the coupling bracket and an arcuate-shaped guiderail on the housing. A biased tab on the coupling bracket is receivedwithin one or more slots in the housing to lock orientation of thehousing relative to the coupling bracket. The rotation adjustmentfeature includes a detent on the mounting bracket received within anaperture in the coupling bracket to lock the coupling bracket at anangle of rotation relative to the mounting bracket.

In another embodiment, the invention is an electronics enclosure havinga water tight cable seal. The electronics enclosure includes a housingadapted to house electronics in at least one coverable seal opening forcable ingress into the housing. A cover is removably attached at theopening. At least one pair of opposing tabs having one tab in theopening and the other on the cover provides strain relief to aningressing cable. At least one pair of opposing sealing pockets is alsoincluded. One sealing pocket is included in the opening and the other onthe cover for sealing the enclosure off against moisture enteringthrough the opening around the ingressing cable. In a preferred form,the pair of opposing tabs include a leading non-deformable edge forengaging the outer surface of the cable. And, at least one pair of theopposing sealing pockets include a leading deformable edge for engagingin sealing against the outer surface of the cable.

In another embodiment, the invention is a DC control circuit forcontrolling back light dimming of an LCD display. The DC control circuitincludes a DC output current adapted for powering a lamp and a pulsewidth modulator adapted for modulating the output current. A capacitancefilter filters the output current. In a preferred form, the luminance ofthe back light is proportional to the output current. The dimming ratiois at least 2000:1 and the luminance is linear over the entire dimmingratio.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a universal controller in accordancewith an embodiment of the present invention.

FIG. 2 is a front elevation view of the controller illustrated in FIG.1.

FIG. 3 is a side elevation view of the controller illustrated in FIG. 1.

FIG. 4 is a block diagram illustrating control of the work operations ofone or more utility devices.

FIG. 5 illustrates the primary control board of the controller in moredetail in accordance with an embodiment of the present invention.

FIG. 6 illustrates an I/O board for an on-premise laundry (OPL) in moredetail in accordance with an embodiment of the present invention.

FIG. 7 illustrates an I/O board for a ware wash dispensing system inmore detail in accordance with an embodiment of the present invention.

FIG. 8 illustrates an I/O board for a dish machine in more detail inaccordance with an embodiment of the present invention.

FIG. 9 illustrates an I/O board for diagnostics and smart sensor boardsin more detail in accordance with an embodiment of the presentinvention.

FIG. 10 illustrates various control board configurations in more detailfor controlling one or more utility devices in accordance with anembodiment of the present invention.

FIG. 11 illustrates additional control board configurations in moredetail for controlling one or more utility devices in accordance with anembodiment of the present invention.

FIG. 12A is a screenshot illustrating exemplary device controls for oneor more external operations of a utility device of the presentinvention.

FIG. 12B illustrates another screenshot for device controls forcontrolling one or more work operations of a utility device of thepresent invention.

FIG. 13 illustrates a cable port into the controller housing illustratedin FIGS. 1-3.

FIGS. 14A-B are perspective views of the front and back of the capcovering the cable port illustrated in FIGS. 1-3.

FIG. 15 illustrates one bracket of the mounting bracket assembly for theelectronics enclosure illustrated in FIGS. 1-3.

FIGS. 16A-B are front and back side perspective views of a couplingbracket of the mounting bracket assembly for the electronics enclosureillustrated in FIGS. 1-3.

FIG. 17 is a perspective view of the controller housing according to oneembodiment of the present invention.

FIG. 18 is a perspective view of a removal cover for a bracket of themounting bracket assembly illustrated in FIG. 15.

FIG. 19 is a perspective view of the back side of the controller housingwith the cover shown in FIG. 20 hidden from view.

FIG. 20 is a perspective view of a cover for cable ingressing locationsin the controller housing according to one embodiment of the presentinvention.

FIG. 21 is a circuit diagram illustrating more detail for the back lightdimming circuit of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIGS. 1-3 illustrate the control device 10 of the present invention. Thecontrol device 10 includes generally a housing 12 having a display 14and a mounting bracket assembly 16 mounting the controller housing 12 ata desired location such as adjacent or affixed to a utility device. Thecontroller housing 12 also includes controls 18 and 20 for an operatoror use to provide input or instructions to the control device 10. Thecontroller housing 12 includes one or more openings in the enclosurehousing 12 for making wired connections to the electronics within thecontroller housing 12. The openings, as described in further detailbelow, have features to prevent water, moisture, debris, and otherdegradational affects from the surrounding environment from injuringinto the controller housing 12. The controller housing 12 also includesfeatures for providing a sensory output for perception by an operator oruser. These features include the display 14 providing a visual sensoryoutput and a speaker 40 illustrated at FIG. 19 providing an audiosensory output for perception by the user or operator. Micro apertureswithin the controller housing 12 permit passage of audio from thespeaker 40 to the environment where the control device 10 is installedfor perception by an operator or user.

FIG. 4 is a diagram illustration illustrating in greater detail thecapabilities of the present invention for controlling multiple utilitydevices simultaneously and/or sequentially. As seen in the diagramrepresentation illustrated at FIG. 4, the primary controller 11 which isoperated using a multi-tasking operating system for controlling nativeapplications 28 and the associated native work operations 30. The nativeapplications 28 and the native work operations 30 may include performingoperations stored as firmware or software to locally control and monitorvarious tasks associated with the primary controller 11. These taskscould include receiving and exporting data to PC 64, data store 26, userinterface 24, data transfer 66, audio 40 and display 14 to name just afew. Other firmware or software may be loaded onto the primarycontroller 11 in the form of external control applications 36. Theexternal control applications 36 may be limited to a utilitydevice-specific set of controls or a bundle of utility device-specificcontrols. External control applications 36 loaded onto the primarycontroller 11 allow the primary controller 11 to have capabilitiesbeyond the native applications 28 and native work operations 30. Runningexternal control operations 36 on primary controller 11 entails accessto the same native applications and work operations such as exchangingdata information from PC 64, data store 26, user interface 24, datatransfer 66, audio 40, network 62, and display 14. Generally, a set ofexternal work operations 38 are associated with a specific type ofdevice, such as a utility device. A set of utility device-specificexternal work operations 38 may be executed using input/output board forinterfacing with each specific utility device. The input/output boards42-48 interface with the utility devices 52-60 to execute external workoperations 38. Multiple I/O boards may be used to execute external workoperations 38 for a single utility device or multiple utility devices.Preferably, the I/O boards 42-50 include modules configured for useacross a wide range of external control applications 36. Preferably, themodules use the same hardware and firmware for executing external workoperations 38. Each I/O board 42-50 includes a microprocessor to controlboard function and for communication with the primary controller 11 orother applications such as the network 62 and/or 63 associated with theprimary controller. The primary controller 11 may be manufactured withsections of the board left unpopulated for subsequent development anduse in different external control applications 36. The present inventioncontemplates that utility devices 52-60 may include any device capableof operation or execution of a process, function or work operation. Forexample, the utility device may be a ware washing system, a laundrysystem, a pool and spa system, a chemical dispensing system, a waterconditioning system, a diagnostics system, a sensor system, a networkcommunication system, a system for monitoring operating parameters, adata storage system, a data transfer system, and other like systems.Examples of a system and method for managing, controlling and monitoringprocesses associated with a group of utility devices is disclosed incommonly owned application Ser. No. 10/348,512, filed Jan. 21, 2003incorporated by reference herein. For example, one I/O board may be usedto control a network 63 for connecting to a local area network (LAN),wide area network (WAN), or the Internet (IP). Data transfer over thenetwork may also include cellular other modems allowing users to connectremotely to the primary controller 11. A single I/O board 48 may be usedto control a utility device 60 interfacing with another utility device58 as illustrated in FIG. 4.

There are numerous interfaces that could be used to connect the I/Oboards 42-50 with the primary controller 11. For example, the primarycontroller 11 may be configured with USB ports. In other embodiments,RS-485 ports may be used as an interface. Ethernet, wireless devices andsensor networks (e.g., HHCM and HACCP) may also be used as a possibleinterface of the present invention. Universal Serial BUS (USB) andRS-485 are examples of serial buses standard to input/output boarddevices. Both are designed to allow peripherals to be connected using asingle standardized interface socket and to prove the plug-and-playcapabilities by allowing devices to be connected and disconnectedwithout disassembling, or tearing down the existing system, even in theinstance where external control applications are loaded onto the primarycontroller 11 where external control applications 36 are loaded onto theprimary controller 11.

FIGS. 5-11 illustrate various diagrams representative of exemplaryconfigurations for the primary controller 11 and various applicationsspecific to I/O board configurations. FIG. 5 provides greater detailregarding a primary control board 68 for use in the primary controller11 according to possible embodiments of the present invention.

The control board 68 includes a display 14. The display 14 may be abitmap display, but is preferably a Quarter Video Graphics Array (QVGA)or higher resolution display. The control board 68 is powered by alogic-level power supply. A General Purpose Input/Output (GPIO) forproviding additional digital control lines. The GPIO may include one ormore diagnostic LEDs for identifying the programming loaded onto theboard. The primary control board 68 also includes a primary controlmicroprocessor module and a control system network communicationsmodule. A standard test access port and boundary-scan architecture suchas a Joint Test Action Group (JTAG) for debugging and testing interfacesassociated with primary control board 68. Primary control board 68 alsoincludes a Field-Programmable Gate Array (FPGA) for implementing, forexample, logic function onto the primary control board 68. An externalram and RS-485 ports may be included. The user interface 24 may includea key pad module. The key pads may be soft button key pad or another keypad module type. The user interface 24 may also include one or morehard-button controls such as controls 18 and 20 illustrated in FIGS.1-3. A real-time clock and nonvolatile memory is also preferablyincluded on the primary control board 68. A communications module isalso provided that provides data transfer via Internet, Wi-Fi, USB, etc.as described above. A Multitasking Operating System (MOS) services thereal-time application requests associated with the primary control board68 or other applications. Other features of the primary control board 68include a high performance clock speed, speaker alarm with volumecontrol and ambient-noise compensated arm volume. As discussed above,the hardware and firmware design is preferably generally the same acrossthe various types of utility devices and external work operations.Similarly, the firmware or primary control module may be modified basedupon some desired external work operation for controlling one or moreutility devices. In some instances, such as for certain utility devicesor external work operations, features of the primary control board 68may not be populated. For example, USB port may not be populated and aquick key pad may only be populated for certain utility deviceapplications such as a dish machine application.

FIG. 6 provides a diagram for an input/output board for an On-PremiseLaundry 70. According to possible embodiments of the present invention,the On-Premise Laundry (OPL) dispensing input/output board includes arelay output module preferably having multi-channel capabilities. TheOPL board 70 also includes a microprocessor module and a control systemnetworks communication module such as RS-485. A digital sensor inputmodule, such as a float switch, PR sensor multi-channel module isincluded. The OPL board 70 also includes a brushless motor controlmodule such as a multi-channel module and a power supply. Generally, thehardware and firmware designed of the module 70 does not change betweenexternal control applications on the I/O ports 42-50. Preferably, thefirmware on the control module on the I/O board 70 is applicationspecific, such as specific to the external work operations for a certainutility device.

FIG. 7 illustrates an I/O board for a ware wash dispensing system 72.The board for ware wash dispensing includes a conductivity module, oneor more valve drive modules, a P-pump (peristaltic pump) motor drivemodule, a ware wash dispensing I/O microprocessor module, and controlsystem network communications module, a thermister input module, and adigital sensor input module such as a float switch or PR sensor. Aspreviously indicated, the hardware and firmware design for the ware washdispensing I/O board module 72 does not change between the variousexternal control applications 36 executed by the I/O ports 42-50.Preferably, the firmware of the control module on the I/O board isapplication specific.

FIG. 8 illustrates an I/O board for a dish machine 74. According to apossible embodiment of the present invention, the I/O board includes aplurality of relay output modules, one or more valve driver modules, adish machine I/O microprocessor module, a control system networkcommunications module, one or more thermister input modules, and one ormore digital sensor input modules such as a float switch or I/R sensor.

FIG. 9 illustrates both diagnostics and smart sensor I/O boards 76according to possible embodiments of the present invention. Thediagnostic board includes a plurality of current monitor modules, adiagnostics input microprocessor module and a control system networkcommunications module. The smart sensor board includes one or more highspeed counter modules, a smart sensor microprocessor module, and acontrol system network communications module.

FIGS. 10-11 illustrate various control device configurations accordingto embodiments of the present invention. Specifically, FIG. 10illustrates specific dish machine and ware wash control devices. In onecontrol device 78, the control board includes a display module, a keypad module, external communications modules such as Internet, Wi-Fi, USBetc., primary control microprocessor module, a control system networkcommunication module 206 and a data logging module. The on-premiselaundry dispensing input/output board includes a plurality of relayoutput modules and a dish machine input/output microprocessor module. Acontrol system network communications module and a plurality of valvedriver modules and digital sensor input modules 200 such as a floatswitch or I/R sensor are also included on the OPL dispensinginput/output board as discussed above. A smart sensor board may also beincluded having one or more high speed counter modules 202, a smartsensor microprocessor module control system network 204 and acommunications module. Control device 80-86 provide additional possibleembodiments of the present invention. For example, the control devicemay include modules in addition to those discussed above, such as athermistor input module 208.

FIGS. 12A-B are diagrams illustrating the display 14. FIGS. 12A-Billustrate diagrammatically possible screenshots of the display 14. Inone aspect of the present invention, the display 14 includes visualelements for providing user-perceived information, functions, processes,alarms, or other pertinent outputs for the user or operator. Forexample, the display may include native device controls 88, native workoperations 90 and native applications 92 illustrated on the display 14.Native device controls 88 allow an operator or use to provide input tothe controller, such as for example, via soft keys. Native workoperations 90 provide information to the operator or user regarding thetype of process being executed by the controller. Additionally, thenative work operations controls 90 may also be an input control forselecting a native work operation for execution by the controller.Native applications 92 appear visually on the display 14. For example,native device controls 88 may include ability of the operator or user toselect a nationality appropriate language. Other native controls 88 mayinclude adjustments to the display 14 and audio 40 to name a few.Training and/or tutorial video, text, or audio may be shown on thedisplay for educating or helping the operator or user to troubleshootnative applications on the controller. FIG. 12B illustratesdiagrammatically another screenshot for the display 14. The display 14includes external device controls 94, external work operations 96, andexternal applications 98 illustrated visually on the display 14. Theexternal device controls 94 include one or more of a set of devicecontrols associated with a specific utility device. The external devicecontrols 94 may be soft keys so that the same keys control additional orother functionality and/or work operations associated with one or moreother types of utility devices. The external work operations 96 may beinput or output keys. The user or operator may select the type of workoperation for execution by the I/O board interfacing with a specificutility device. Additionally, the external work operations 96 may bevisually illustrated to provide troubleshooting options fordevice-specific external work operations. The external application 98may be used to visually provide the user or operator with additionalinformation such as training and/or tutorial videos, text for one ormore external work operations associated with a utility device.Information such as training and tutorial information may be presentedto the operator or user via the audio system 40 of the control device10. A plurality of application-specific screenshots are included in theAppendix attached hereto and incorporated by reference herein.

FIGS. 13 and 14A-B illustrate a cable port in the housing 12 of thecontrol device 10. The cable port 100 provides for wired or cableconnections to be made with the electronics within the housing 12, suchas cable connection to another electronic device such as a PC 64. Thecable connector or port may be an Ethernet port, RJ45 connector, orother like connector or port. The cable port 100 is covered by a cap 102illustrated in FIGS. 1-2 and 14A-B. When the cable port 100 is not inuse, the opening 104 of the cable port 100 is closed off by cap 102. Agasketless, water tight seal is formed between the cap 102 and theopening 104 to prevent water from entering into the housing 12 therebycausing damage to the electronics within the housing 12. In one aspectof the invention, the mating interface between the cap 102 and theopening 104 is a plastic (e.g., polypropylene) on plastic (e.g.,polypropylene). According to one embodiment of the present invention,the opening 104 includes a generally radially shaped wall 106 extendingoutwardly from the housing 12 and terminating in an edge 108. A ribextending generally perpendicularly outward from the wall 106 may beincluded at or near the edge 108. The rib 109 is preferably elasticallydeformable. Additionally, the wall 106 has a minimum wall thickness toallow deformation of the wall 106 housing the rib 109. A recess 107 isincluded about the opening having a depth and angle suitable forinserting a finger of an operator or user's hand to disengage the cap102 from the cable port 100. The housing 12 includes a post 110 receivedwithin aperture 114 in the tether portion 112 of the cap 102 illustratedin FIG. 14B. Also, as illustrated in FIGS. 14A-B, the cap 102 includes aflange which is generally radially shaped that extends outward adistance and terminates in edge 120. A rib 122 extends generallyperpendicularly inward from the flange at or near the edge 120. Theflange 118 has a minimal thickness so as to be elastically deformable.Similarly, the rib is constructed of an elastically deformable material.The cap 102 also includes a flared portion 116 cooperating with therecess 107 illustrated in FIG. 13 to provide a gap for insertion of afinger for separating the cap 102 from the cable port 100. The relativediameters of the wall 106 and flange 118 are different from one anotheronly enough to cause an interference fit between the flange 118 on thecap 102 and the wall 106 extending from the opening 104 of the cableport 100. The elastically deformable rib 109 and 122 create a watertight seal to prevent water from entering into the housing 12. The ribs109 and 122 also prevent the cap 102 from inadvertently becomingseparated from the cable port 100. The present invention contemplatesthat the rib 109 and 122 may be included on internal or externalsurfaces of the wall 106 and flange 118. Additionally, one or both ribsmay be removed in the case where the interference fit between the wall106 and the flange 118 is sufficient tight to provide a water tight sealyet sufficiently elastically deformable to allow the cap 102 to closethe cable port opening 104. The present invention contemplates otherpossible embodiments of a cap for a cable port in the housing 12. Theseembodiments are illustrated generally in the Appendix attached heretoand incorporated by reference herein. According to one aspect of thepresent invention, the cap 102 may be constructed to include an innersealing surface having a cable seat for sealing against an outer surfaceof a cable plugged into the electronics in the housing 12 for sealingthe housing 12 against water ingressing around the cable when the cableport 100 is closed by the cap 102. Embodiments of the cap include anaperture having the sealing surface for seating against the cablepassing through the cap 102. For example, the cap 102 may be constructedas a two-piece unit whereby the cable passes through an aperture in oneor partially in both of the two pieces of the cap and is sealed by thesealing surfaces of the cable seat so that the cable can be plugged intothe electronics and the cable port 100 capped off by the cap 102 at thesame time. Embodiments of the present invention achieving the objectivesof capping off the cable port 100 while having the cable plugged intothe electronics within the housing 12 are illustrated specifically inthe Appendix attached hereto.

FIGS. 15-18 illustrate a mounting bracket assembly 16 according to anexemplary embodiment of the present invention. The mounting bracketassembly 16 includes a mounting bracket 124 having a mounting plate 126covered generally by cover plate 128. Mounting features 154 are includedin the mounting plate 126 for affixing the mounting bracket 124 at adesired location such as to a utility device or an adjacent structure,wall or location nearby. A mounting plate 126 of the mounting bracket124 includes a cover plate 128 having a tab 156 received within a slot158 to prevent inadvertent or unintentional separation of the coverplate 128 from the mounting plate 126. The cover plate 128 covers andseals the mounting features 154 used to affix the mounting plate 126 toa desired installation location. The cover plate 128 helps preventdebris and moisture from degrading, eroding and destroying the means formounting the mounting bracket at a desired location. For example, thecover plate 128 protects a screw, rivet, Velcro, double-sided adhesive,or other attachment means used to secure the mounting plate 126 at thedesired install location. Cover plate 128 also provides an esthetic andornamental appeal to the mounting bracket 124. The mounting bracket 124is generally oriented perpendicularly relative to the mounting plate 126as illustrated in FIG. 15. The present invention contemplates that themounting bracket 124 may be oriented at any angle relative to themounting plate 126. The mounting bracket 124 includes a mounting face136, a generally planar surface. An alignment pin 130 extends outwardlyfrom the mounting face 136. A plurality of keys 134 are spaced generallyradially about the alignment pin 130. A detent 132 is also provided inthe mounting face 136 and is biased outward from the mounting face 136.

The mounting bracket assembly 16 also includes a coupling bracket 138illustrated in FIG. 16A. The coupling bracket 138 includes a front side184 illustrated in FIG. 16A and a back side 186 illustrated in FIG. 16B.As best illustrated in FIG. 16B, the back side 186 of the couplingbracket 138 includes a mounting face 192 which is generally planar. Themounting face 192 mates against the mounting face 136 of the mountingbracket when the two are coupled together. Additionally, the couplingbracket 138 includes an aperture 188 for receiving the alignment pin 130on the mounting bracket 124 when the two brackets are coupled together.Similarly, the aperture 190 and the coupling bracket 138 receive thedetent 132 on the mounting bracket 124 when the two are coupledtogether. The detent 132 is biased outward so as to force the detentinto the aperture 190 when the two are properly aligned. As bestillustrated in FIG. 16B, the coupling bracket 138 also includes aplurality of key ways 142 spaced radially about the aperture 188. Theradially spaced key ways 142 have the same mounting pattern as theradially spaced keys 134 on the mounting face 136 of the mountingbracket 124. The coupling bracket 138 and mounting bracket 124 areconnected together by aligning the alignment pin 130 with the aperture188 in the coupling bracket so that the radially spaced keys 134 arereceived through the radially spaced key ways 142. The coupling bracket138 is rotated until the outwardly biased detent 132 is received intothe aperture 190 and the couple bracket 138. At this point, the radiallyspaced keys 134 are locked into the key ways 142 to secure the couplingbracket 138 to the mounting bracket 124. To separate the brackets, thedetent 132 is depressed and the coupling bracket 138 is rotated theopposite direction to remove the interlocking function of the radiallyspaced keys 134 and the key ways 142.

As illustrated in FIG. 16A, the front side 184 of the coupling bracket138 includes tracks 144 defining slots 146. The track 144 may be acontinuous track or comprised on non-continuous sections illustrated inFIG. 16A. A bias tab 140 is included on the coupling bracket 138. Thetab 140 is biased toward the front side 184 of the coupling bracket 138is adapted for attachment to the housing 12 of the control device 10.The back side of the housing 12 includes a pair of guide rails 148spaced apart the distance between the slots 146 and opposing tracks 144on the coupling bracket 138. The guide rails 148 are open at one end andclosed at the other. For example, as illustrated in FIG. 17, guide stops150 are included at the uppermost end of the paid of guide rails 148.Also included in the back side of the housing 12 are a plurality ofslots 152 spaced apart to define degrees of rotation for the housing 12relative to the coupling bracket 138. The housing 12 and couplingbracket 138 are connected by inserting the pair of guide rails 148 intothe pair of opposing slots 146 in the tracks 144 of the coupling bracket138. In a preferred form of the present invention, the pair of tracks144 and pair of guide rails 148 are curved following the contour of thehousing 12 for the control device 10. The curved or arcuate shape of thetracks 144 and guide rails 148 allow the orientation of the housing 12relative to the coupling bracket 138 to be adjusted. Adjustments in theorientation of the housing 12 relative the coupling bracket 138 areaccomplished by pivoting the housing 12 upward or downward. The bias tab140 engages the slots 152 in the back side of the housing 12. To adjustthe orientation of the housing 12 relative to the coupling bracket 138,the bias tab 140 is disengaged from a slot 152 and the housing 12 isorientated upward or downward depending on the desired orientation ofthe face, display 14 or user interface 24 of the control device 10. Thedistance between the slots 152 may be adjusted to control the degree ofchange and orientation of the housing 12 between each slot 52. Forexample, the slots 152 may be spaced closer together to provideincremental control of the orientation of the housing 12 relative to thecoupling bracket 138. Alternatively, the slots may be spaced furtherapart so that the amount of orientation adjustment between slots isgreater. The position of the slots 152 on the back side of the housing12 for the control device 10 may be spaced a distance that translatesinto degrees of orientation adjustment to the face of the control device10. For example, the slots 152 may be spaced apart so that the amount oforientation adjustment between slots is 5, 10, 15° or some otherpreferred degree of adjustment. The guide stops 150 at the top of thepair of guide rails 148 on the housing 12 prevent the housing 12 frominadvertently or accidentally separating from the coupling bracket 138if the bias tab 140 becomes separated from the uppermost slot 152 or thehousing 12 is adjusted past the uppermost slot 152 during an orientationadjustment of the housing 12. The mounting bracket assembly 16 isconfigured so that it can be mounted vertically or horizontally, such ason the top side or bottom of a utility device or an adjacent installlocation. To mount the bracket 16 horizontally, the coupling bracket 138is separated from the mounting bracket 124 and rotated 90° and thenreattached. The housing 12 is now oriented generally perpendicular tothe mounting bracket 124. Additionally, to mount the bracket 16 on thebottom side of a utility device or upside down, the coupling bracket 138is separated from the mounting bracket 124 and rotated another 90° andreattached. The mounting bracket 124 is now situated vertically abovethe housing 12 when installed. The mounting bracket assembly 16 allowsthe controller housing to be mounted on any surface of varyingorientation. For example the controller housing may be mounted on thetop, bottom or side of a utility device or other point of installation.Regardless of the installation position of the bracket assembly 16,controller housing 12 can be rotated and/or oriented so that the faceand display of the controller are easily viewable by the operator oruser using the adjustment features of the bracket assembly describedabove.

The mounting bracket assembly 16 includes generally a mounting bracket124 and coupling bracket 138, and is mounted at the installationlocation using the mounting bracket 124 as described in detail above.The controller housing 12 may also be mounted at an installationlocation, such as to a utility device or adjacent wall, using only thecoupling bracket 124 instead of both the coupling and mounting brackets138 and 124. The coupling bracket 138 may be mounted to at aninstallation location using various attachments means, such as adhesive,Velcro, screws, nails, tape, etc. The controller housing can still betilted/oriented relative to the mounted coupling bracket 138 using themethods described above.

Tilting option for the housing 12 remains operable regardless ofmounting location or if mounted only by the coupling bracket.

The front portion of the housing 12 could also be bezel mounted with thecap 102 secured by a tether at the bezel or mounting location.

According to another aspect of the invention, the mounting bracketassembly 16 facilitates orientation of the housing 12 whereby openings(e.g., for ingressing cables) in the housing are oriented generallydownwardly to inhibit water from contacting the opening or junctionbetween the cable and opening. Similarly, the flared portion 116cooperating with the recess 107 illustrated in FIG. 13 to provide a gapfor insertion of a finger for separating the cap 102 from the cable port100 may also be oriented generally downwardly to inhibit water fromcoming into contact with the sealing interface about the cable port 100.

FIGS. 19-20 illustrate cable ports 162 passing through the housing 12 ofcontrol device 10. The cable ports 162 provide openings for a cable topass through the housing 12 for connection within the enclosure 12.Cables are passed through the cable ports 162 by removing the cover 160illustrated in FIGS. 17 and 20. The cable ports 162 provide a dualfunctionality, specifically the cable ports 162 have means for providingstrain relief and sealing against the cable to prevent moisture fromentering into the housing 12. According to one possible embodiment ofthe present invention, the cable ports 162 include tabs 164 in thehousing 12 and opposing tabs 166 in the cover 160. The tabs include aleading non-deformable edge for engaging an outer surface of a cablepassing through the cable ports 162. Additionally, the cable portsinclude a pocket 168 in the housing 12 and opposing pockets in the cover160. The pockets 168 and 170 engage the outer surface of the cablepassing through the cable ports 162 to seal against the cable andprevent moisture from entering through the cable ports 162 into thehousing 12. The space 171 between the pair of pockets 168 on the housing12 may also include a gasket 173, such as a foam seal, to seal againstthe cable and prevent moisture from entering through the cable ports 162into the housing. A similar gasket 175 may also be included in the space177 between the pair of pockets 170 on the cover 160. The pockets 168and 170 may include a leading deformable edge for engaging in sealingagainst the outer surface of the cable passing through each cable port162. Additionally, the present invention contemplates that the outermostcable port 162 may be used to seal against the outer surface of thecable to prevent water from entering into the housing 12 and theinnermost cable port 162 may be used to provide strain relief to thecable. For example, should the cable passing into the housing 12 beinadvertently or accidentally yanked or pulled on, the tabs 164 and 166in the housing 12 and cover 160, respectively, prevent yanking ortugging of the cable from damaging the connection or electronics withinthe housing 12 of the control device 10. In another embodiment, thespace defined between the upper and lower cable ports 162 may include anelastically deformable surface whereby the elastically deformablesurface engages the outer surface of the cable to seal the cable passingthrough the cable ports 162 from permitting water to entering into thehousing 12. In this instance, the strain relief is provided by the tabs164 and 166. The elastically deformable surface is preferably includedin both the recess between the upper and lower cable ports in thehousing 12 and the cover 160. The cover 160 also includes a flange 188for engaging the cover 12 and one or more seal ribs 182 for preventingwater from entering into the housing 12 between the mating surfaces ofthe cover 160 and housing 12. Additional description and embodimentsaccording to possible aspects of the present invention are disclosed inthe attached Appendix, which description is incorporated by referenceherein. The housing 12 preferably has an ingress protection (IP) ratingin excess of 65 (e.g., 6 dry rating and 5 wet rating). The preferred IPrating applies to the enclosure both when cables are and are notconnected to electronics within the housing 12.

FIG. 21 illustrates a circuit diagram from a DC control circuit forcontrolling backlight dimming of an LCD display 14. The circuit includesa DC output current adapted for powering a lamp. A Pulse Width Modulator(PWM) is also included for modulating the output current. A capacitancefilter is connected for filtering the output current. In one possibleembodiment of the present invention the “PWM Input” signal is drivendirectly off one of the PWM output pins of the microprocessor.Alternatively, any circuit capable of generating a PWM waveform may beused. Pin 39 and 40 of the connector at the bottom of the image connectto a set of white LEDs inside the display 14 that provide the backlightillumination. Pin 39 goes to the Anode of the LEDs, pin 40 goes to theCathode. The frequency of the PWM waveform in according to the presentinvention is roughly 16 KHZ. The filter capacitor in the circuit isdesigned generally to match the PWM waveform frequency

While the system here and before described is effectively adapted tofulfill the aforementioned objectives, it is to be understood that theinvention is not intended to be limited to the specific preferredembodiments of the aspects disclosed and set forth above. Rather, it isto be taken as including all reasonable equivalence to the subjectmatter of the appended claims.

What is claimed is:
 1. An orientation adjustable electronics enclosureand mounting bracket assembly, comprising: a housing adapted to houseelectronics; a mounting bracket connected to the housing with a couplingbracket connected between the housing and the mounting bracket, saidcoupling bracket comprising: (a) a set of rotation adjustment featuresconnecting the coupling bracket and mounting bracket together such thatthe coupling bracket is rotatably positionable on the mounting bracketabout a first axis; and (b) a set of orientation adjustment featuresslidably connecting the housing and coupling bracket such that thehousing is slidably movable relative to the coupling bracket; andwherein sliding the housing relative to the coupling bracket angularlytilts the housing about a second axis substantially perpendicular to thefirst axis.
 2. The assembly of claim 1 wherein the orientationadjustment feature includes an arcuate-shaped track on the couplingbracket configured to slidably engage an arcuate-shaped guide rail onthe housing.
 3. The assembly of claim 2 wherein the set of rotationadjustment features includes a plurality of radially spaced keyways. 4.The assembly of claim 3 further comprising a guide stop on thearcuate-shaped guide rail or the arcuate-shaped track providing a stopposition defining at least one outer range of permissible orientationfor the housing.
 5. The assembly of claim 4 wherein, the orientationadjustment feature includes a biased tab on the coupling bracketreceived within one or more slots in the housing to lock orientation ofthe housing relative to the coupling bracket.
 6. The assembly of claim 5wherein the separation distance between the slots corresponds to achange in the orientation angle of the housing.
 7. The assembly of claim1 wherein the mounting bracket includes one or more mounting featuresenclosed behind a removable cover to keep the mounting features andmounting surface free from debris and degradation effects of thesurrounding environment.
 8. The assembly of claim 1 wherein the set ofrotation adjustment features interlock by rotation of the coupling andmounting brackets.
 9. The assembly of claim 1 wherein the rotationadjustment features include a detent on the mounting bracket receivedwithin an aperture in the coupling bracket to lock the coupling bracketat an angle of rotation relative to the mounting bracket.
 10. Theassembly of claim 9 wherein the angle of rotation includes at leastoptionally 90, 180, and 270 degrees.